X0306 4 2018-02-27 0 0001652044 Alphabet Inc. GOOG 0001290467 Greene Diane B C/O ALPHABET INC. 1600 AMPHITHEATRE PKWY MOUNTAIN VIEW CA 94043 1 1 0 0 Senior Vice President Class C Capital Stock 2018-02-26 4 C 0 20 0.00 A 83822 D Class C Google Stock Units 2018-02-26 4 C 0 3 0.00 D 159 D Class C Google Stock Units 2018-02-26 4 F 0 2 1126.79 D 157 D Class C Google Stock Units 2018-02-26 4 C 0 8 0.00 D 46 D Class C Google Stock Units 2018-02-26 4 F 0 5 1126.79 D 41 D Class C Google Stock Units 2018-02-26 4 F 0 5 1126.79 D 234 D Class C Google Stock Units 2018-02-26 4 C 0 9 0.00 D 225 D Class A Common Stock 39 D Class A Common Stock 11 I By Trust Class A Common Stock 123 I By Trust Class A Common Stock 11 I By Trust Class C Capital Stock 11 I By Trust Class C Capital Stock 123 I By Trust Class C Capital Stock 11 I By Trust Class C Capital Stock 4462 I By spouse Class C Google Stock Units 19617 D Vesting of Google Stock Units ("GSUs") grant of which was previously reported in Form 4. Class C GSUs entitle the Reporting Person to receive one share of Alphabet Inc. Class C Capital Stock for each share underlying the GSU as GSU vest.1/48th of GSUs vested on July 25, 2016 and an additional 1/48th of GSUs will vest monthly thereafter until the GSUs are fully vested, subject to continued service on such vesting dates Shares withheld to satisfy tax obligations arising out of vesting of GSUs. 1/48th of the grant vested on June 25, 2014 and an additional 1/48th will vest on the 25th day of each month thereafter, subject to continued service on the Board on such vesting dates. 1/48th of GSUs vested on July 25, 2015 and an additional 1/48th of GSUs will vest monthly thereafter until the GSUs are fully vested, subject to continued service on such vesting dates. 1/16th of the GSUs vested on March 25, 2016, and an additional 1/16th will vest quarterly on the 25th day of the month until the GSUs are fully vested, subject to continuing employment on such vesting dates. /s/ Valentina Margulis, as Attorney-in-Fact for Diane B. Greene 2018-02-27